1 Pre-heat the oven to 200°C/400°F/Gas 6. Slice the brioche loaf into six thick slices or the croissants in half lengthways and butter on both sides. Lay the slices in an ovenproof dish, roughly measuring 20 x 20cm (you may need another brioche loaf to cover the bottom of the dish) and generously spread over the apricot jam.